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  2. Corneal opacity - Wikipedia

    en.wikipedia.org/wiki/Corneal_opacity

    Corneal opacity; Other names: Corneal scarring: Complete corneal opacity in right eye with normal left eye: Specialty: Ophthalmology: Symptoms: Loss of vision: Complications: Blindness: Usual onset: Congenital or acquired: Treatment: Corneal transplantation: Frequency: 4th main cause of blindness globally (5.1%). [1]

  3. Visual pathway lesions - Wikipedia

    en.wikipedia.org/wiki/Visual_pathway_lesions

    Visual field-right superior quadrantanopia. Lesions of right temporal lobe (meyer's Loop) of the optic radiation on one side produces a loss of the upper, outer quadrant of vision on the contralateral side, known as homonymous superior quadrantanopia or superior quadrantic hemianopia. [25] This is also known as pie in the sky disorder. [3]

  4. List of optometric abbreviations - Wikipedia

    en.wikipedia.org/wiki/List_of_optometric...

    oculus sinister (left eye) LHyperT or LHT: Left hypertropia LHypoT: Left hypotropia LO: Lenticular opacity L/R FD: L/R fixation disparity L/R: L hyperphoria Left ET: Left esotropia LVA: Low vision aid MDU: Mallett distance unit MNU: Mallett near unit M.Wing: Maddox Wing: MR: Maddox rod NB: NAD: No abnormality detected (is frequently used but is ...

  5. Ground-glass opacity - Wikipedia

    en.wikipedia.org/wiki/Ground-glass_opacity

    Ground-glass opacity (GGO) is a finding seen on chest x-ray (radiograph) or computed tomography (CT) imaging of the lungs. It is typically defined as an area of hazy opacification (x-ray) or increased attenuation (CT) due to air displacement by fluid, airway collapse, fibrosis , or a neoplastic process . [ 1 ]

  6. Homonymous hemianopsia - Wikipedia

    en.wikipedia.org/wiki/Homonymous_hemianopsia

    Hemianopsia, or hemianopia, is a visual field loss on the left or right side of the vertical midline. It can affect one eye but usually affects both eyes. Homonymous hemianopsia (or homonymous hemianopia) is hemianopic visual field loss on the same side of both eyes. Homonymous hemianopsia occurs because the right half of the brain has visual ...

  7. Quadrantanopia - Wikipedia

    en.wikipedia.org/wiki/Quadrantanopia

    A lesion affecting one side of the temporal lobe may cause damage to the inferior optic radiations (known as the temporal pathway or Meyer's loop) which can lead to superior quadrantanopia on the contralateral side of both eyes (colloquially referred to as "pie in the sky"); if the superior optic radiations (parietal pathway) are lesioned, the ...

  8. Micropsia - Wikipedia

    en.wikipedia.org/wiki/Micropsia

    Micropsia is a condition affecting human visual perception in which objects are perceived to be smaller than they actually are. Micropsia can be caused by optical factors (such as wearing glasses), by distortion of images in the eye (such as optically, via swelling of the cornea or from changes in the shape of the retina such as from retinal edema, macular degeneration, or central serous ...

  9. Uvea - Wikipedia

    en.wikipedia.org/wiki/Uvea

    The uvea (/ ˈ j uː v i ə /; [1] derived from Latin: uva meaning "grape"), also called the uveal layer, uveal coat, uveal tract, vascular tunic or vascular layer, is the pigmented middle layer of the three concentric layers that make up an eye, precisely between the inner retina and the outer fibrous layer composed of the sclera and cornea.